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Just bought a HP-67 calculator at an auction
08-27-2020, 12:15 AM
Post: #24
SlideRule Offline
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RE: Just bought a HP-67 calculator at an auction
(08-26-2020 12:05 PM)SlideRule Wrote:  The Publisher Summary for Handbook of Environmental Degradation of Materials, 2005, Chapter 7 - Chemical and physical aging of plastics {pgs. 153-163}

" This chapter distinguishes between chemical aging and physical aging of plastics … "

Thermal degradation / aging is also a candidate process.

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SlideRule

ps:don't forget to include reversion.
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RE: Just bought a HP-67 calculator at an auction - SlideRule - 08-27-2020 12:15 AM



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